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Finding the Fourth Proportional to 9,231.42, 12,775.91 and 9,010.29

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Solution

The fourth proportional to 9,231.42, 12,775.91 and 9,010.29 is: 12,469.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,231.42 : 12,775.91 = 9,010.29 : x
  2. Step 2: Convert to fraction form
    9,231.42/12,775.91 = 9,010.29/x
  3. Step 3: Cross multiply
    9,231.42x = 12,775.91 × 9,010.29
  4. Step 4: Simplify right side
    9,231.42x = 115,114,654.11
  5. Step 5: Solve for x
    x = 115,114,654.11/9,231.42
  6. Step 6: Final answer
    x = 12,469.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.